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The Spartan Group
Boutique investment bank serving entrepreneurs and family-owned businesses from Pasadena with 14 global offices and 80 years of combined partner...
The Spartan Group
The Spartan Group operates as a boutique investment bank headquartered in Pasadena, California, with additional offices in major global markets including Palo Alto, London, Hong Kong, and Dubai. Founding partners John O. Johnson and Juan E. Mondragón lead a team that positions itself as owners advising owners, targeting entrepreneurs and family-owned businesses. The firm’s website emphasizes a direct connection to capital and a transactional practice built on what it claims is 80 years of combined partner experience, though it does not disclose a founding year or the professional backgrounds that compose that figure. The firm publishes sector-specific market intelligence, with visible newsletter coverage of digital marketing, advertising, and food and beverage verticals — the only two sectors it explicitly tags in its thought leadership. Its transaction services include M&A advisory and a suite of capital-raising capabilities, though the firm does not publicly list completed deals, portfolio holdings, or fund structures. The geographic footprint spans 14 cities across North America, Asia, Europe, and the Middle East, suggesting an effort to source cross-border transactions for founder-led clients, but no specific cross-border deals are cited. The senior leadership team includes four named professionals: Founding Partners Johnson and Mondragón alongside Managing Directors Peter D. Morgan and J.R. Arano. The firm does not publish a total headcount, AUM figure, or aggregate deployment number. The Pasadena address serves as the postal hub, while career inquiries are routed directly to Arano’s email. No philanthropic vehicle, investment fund, or operating company is disclosed as adjacent to the advisory business. The firm’s structural differentiator is its pitch as a practitioner-owner bank for owner-clients — a narrative built on longevity and partnership experience rather than disclosed scale. Its only publicly visible indicators of activity are quarterly and annual market reports, including a Q1 2026 Digital Marketing & Advertising Report and a CYE 2025 Market Crunch newsletter. No dated operational event from the last 24 months beyond these publications is verifiable from available sources.
General information
Firm type
Asset Manager
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Pasadena
Corporate office
16 North Marengo Avenue, Suite #307, Pasadena, California 91101, United States
Additional offices
Palo Alto, CA · Tokyo, Japan · Dubai, UAE · San Francisco, CA · London, UK · Singapore · Shanghai, China · Taipei, Taiwan · Shenzhen, China · Seoul, South Korea · Tortola, British Virgin Islands · Beijing, China · West Palm Beach, FL · Hong Kong
Principals
John O. Johnson
Founding Partner
Peter D. Morgan
Managing Director
Juan E. Mondragón
Founding Partner
J.R. Arano
Managing Director
Sector focus
Frequently asked questions
Who runs investment decisions at The Spartan Group?
The firm’s advisory leadership is structured around four named professionals: Founding Partners John O. Johnson and Juan E. Mondragón, and Managing Directors Peter D. Morgan and J.R. Arano. The firm does not distinguish between those who originate and those who execute in its public materials, and it has not disclosed an investment committee or formal decision-making hierarchy.
Does The Spartan Group invest its own capital or operate as an investment bank?
The Spartan Group presents itself exclusively as an advisory firm, not an investor. Its website describes transaction services including M&A advisory and capital raising for entrepreneurs and family-owned businesses, with no mention of a proprietary balance sheet, fund vehicles, or direct principal investments.
What sectors does The Spartan Group specialize in?
Based on its published thought leadership, the firm covers digital marketing, advertising, and food and beverage. These are the only sectors for which it has released named market reports — specifically a Q1 2026 Digital Marketing & Advertising Report and a CYE 2025 Market Crunch focused on food. It has not published a formal sector taxonomy beyond those newsletters.
How large is The Spartan Group's team?
The firm has not disclosed a total professional headcount. Its website features four senior leaders — two Founding Partners and two Managing Directors — and lists career-inquiry contact information, but no organizational chart, team page, or staffing figure is publicly available.
Where does The Spartan Group maintain offices?
The firm lists 15 office locations spanning the United States, Asia, the Middle East, Europe, and the Caribbean: Pasadena (headquarters), Palo Alto, San Francisco, West Palm Beach, Tokyo, Singapore, Hong Kong, Shanghai, Beijing, Shenzhen, Taipei, Seoul, Dubai, London, and Tortola in the British Virgin Islands.
Does The Spartan Group disclose assets under management or transaction volume?
No. The firm does not publish an AUM figure, aggregate deal count, or total transaction value. Because it describes itself as an investment bank rather than an asset manager, AUM is not a standard disclosure metric, but an annual or cumulative advised-transaction volume is also absent from its public materials.
Is The Spartan Group related to a single-family office or any other wealth structure?
There is no public disclosure linking The Spartan Group to a single-family office, family wealth origin, or any affiliated pooled investment vehicle. The firm’s materials describe only its advisory services, with no mention of a related philanthropic foundation, operator company, or family office client mandate.
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